<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>test</title>
</head>
<body>
	<div class="box">
		<li class="son">
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
			<ul class="list"></ul>
		</li>
	</div>>a
</body>
</html>